# 三维数组
num = [ [ [33,45,67],[23,71,66],[55,38,66] ],\
       [ [21,9,15],[38,69,18],[90,101,89] ] ]
value = num[0][0][0]
print(num)
for i in range(2):
    for j in range(3):
        for k in range(3):
            if(value>=num[i][j][k]):
                value = num[i][j][k]
print("最小值= %d" %value)